I think you're doing well. Getting on the right track and all, I was just chiming in about my experience with led. I used to think t5 was outdated but the results speak for themselves. I'm sure your light is good enough to use and will probably get you a small amount of nice dense buds. I have not loved led for veg because they have to be put really far away or else they'll stunt the growth or burn and dry out the foliage. It seems like I'm wasting the powerful led having it so far away. With t5 I can put the light 2" from the tops and my plants bush out. With all 8 tubes on, it only pulls 195 watts max and it can be dimmed to half (4bulbs) which would honestly be enough to get your girls looking dense as crazy as that might sound.
Since sun is the original source of light for cannabis, growers have success when they mimic it. Flourescent, hps, and mh all do that, to an extent. From what I understand, light emitting diodes are not a naturally occurring source of light for cannabis.
Just some thoughts and ideas for consideration